You are the network administrator for Your network consists of a single Active Directory domain named All network servers run Windows Server 2003. A server named TK1 hosts user home folders, which occupy 12 GB of disk space. You install a backup tape device on TK1. You create a batch file that will automatically back up TK1 by running Ntbackup.exe every day at 1:00 A.M. One week later, you test your restoration procedure for home folders on TK1. You notice that your backup data occupies only 9 MB of disk space. You review the backup batch file: REM "Backup Batch File" NTBACKUP.EXE BACKUP D:\/m daily /1:s /v:yes /k "BACKUP_TK1" You need to ensure that all existing and future data on TK1 is backed up successfully. What should you do?（）

A. Specify /b in the command line of the batch file.
B. Change /m daily to /m normal in the command line of the batch file.
C. Modify the NTFS permissions on the user home folders to assign the Allow - Full Control permission to the Administrators group.
D. Add the local Administrator account for TK1 to the local Backup Operators grou